<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="main.css"> <!-- link引入文件 -->
    <!-- <link rel="stylesheet" href="addon.css">  -->
    <style>
        img{
            width: 320px;
            height: 226px;
        }
    button
        {
            font-size: 20px;
       color:cornflowerblue;
        }
    </style>
</head>

<body>
    <img src="../0-3-html/top.jpg" alt="">
    <button>按钮</button>
    <button>按钮</button>
    <button>按钮</button>
    <button>按钮</button>
    <button>按钮</button>
</body>
</html>